add citation.cff

• minor updates to dataset metadata and ordering
• add citation.cff file

fix divide by zero in rolling z score

Fixed divide by zero bug in the rolling z score computation (z-score w/ moving interval) when it encounters missing data in paleocar v3

Thanks to @bocinsky for discovering this!

First SKOPE api release candidate

First official release candidate of SKOPE backend API with services for timeseries data, statistics, and dataset metadata

@cpritcha did all of the heavy lifting initially to establish the technology stack, set up the project and design, development, documentation, and testing based on @tmcphillips original timeseries service code

Many thanks to @bocinsky @kintigh @tako2428 and the rest of the @openskope/openskope team for painstaking testing, QA, documentation, and the occasional bug fix